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CVE-2020-6829 Affecting nss-util package, versions <0:3.53.1-1.58.amzn1

0.0
medium

Snyk CVSS

    Attack Complexity High
    User Interaction Required
    Confidentiality High

    Threat Intelligence

    EPSS 0.12% (45th percentile)
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NVD
5.3 medium
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SUSE
5.3 medium
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Red Hat
4.4 medium

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  • Snyk ID SNYK-AMZN201803-NSSUTIL-1726264
  • published 27 Sep 2021
  • disclosed 28 Oct 2020
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Introduced: 28 Oct 2020

CVE-2020-6829 Open this link in a new tab

How to fix?

Upgrade Amazon-Linux:2018.03 nss-util to version 0:3.53.1-1.58.amzn1 or higher.
This issue was patched in ALAS-2021-1522.

NVD Description

Note: Versions mentioned in the description apply only to the upstream nss-util package and not the nss-util package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

When performing EC scalar point multiplication, the wNAF point multiplication algorithm was used; which leaked partial information about the nonce used during signature generation. Given an electro-magnetic trace of a few signature generations, the private key could have been computed. This vulnerability affects Firefox < 80 and Firefox for Android < 80.